Patents by Inventor Alfons Knapp
Alfons Knapp has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6341731Abstract: A thermostatic regulator (30) for a single handle mixer valve (12) has a sensor (32) mounted in a mixed water chamber (34) for sensing the temperature of the outlet water. The sensor is connected to a valve (20) that is mounted in the cold water supply line (18) to restrict the availability of cold water when the water in the hot water line (16) is down below a set temperature.Type: GrantFiled: September 25, 2000Date of Patent: January 29, 2002Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 6276003Abstract: An adjustable support for a shower, including a rod (10) installed in a substantially vertical position, which is supported near its midpoint by a support bracket (12) integrally formed with a mixing valve handle assembly (11). The rod (10) vertically extends in two branches (20, 30), an upper branch (20) and a lower branch (30) that mounts shower holders (19, 17) for retaining a hand held shower head (22). The holders (14, 17) are slidably mounted longitudinally along the rod and are equipped with a fastener for affixing them in a desired position. The rod (10) can be slidably adjusted longitudinally with respect to the support bracket (12) and, in this case, the support bracket for the rod is provided with a fastener (13) for affixing the rod (10) in place. The rod can furthermore be supported by a bracket (21) in proximity of its upper end.Type: GrantFiled: June 2, 2000Date of Patent: August 21, 2001Assignee: Masco Corporation of IndianaInventor: Alfons Knapp
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Patent number: 6270022Abstract: An aerating device for a shower where the shower includes a water chamber having a connection for the supply of pressurized water and having a first perforated plate that forms a wall of the water chamber and that is provided with a plurality of holes. Each hole of the first plate is constructed as to project a single jet of water. The aerating device comprises a second perforated plate, positioned downstream from the first plate, to make an air chamber between the two plates. The second plate has a plurality of holes, each of which is aligned along the direction of projection of the respective jet of water of a corresponding hole of the first plate. An air intake is positioned between the air chamber and the outside environment. The aerating device makes it possible to aerate by way of the Venturi effect, at the outlet of the shower to eliminate any resistance after the jets have been formed for providing a highly efficient device.Type: GrantFiled: December 3, 1999Date of Patent: August 7, 2001Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 6263919Abstract: A sequential mixing cartridge (10), for use with a cold and hot water mixing device, comprises with entry openings (15, 16) for cold water and hot water and with a delivery opening (18) for mixed water. The interior of the body houses a sequential mixing slide valve (19) as well as operating members (25) for this mechanism partially protruding from the body. The shape and outside dimensions of the body as well as the arrangement of the inlet openings for cold water and hot water and for delivery of mixed water substantially match the construction and dimensions of a thermostatic mixing cartridge, thus achieving complete interchangeability with it. The sequential mixing mechanism (19) is preferably constructed to provide a delivery shut-off control member extension (21) for regulating the flow rate. Preferably, the body has inlet openings (15, 16) for cold water and hot water on its outer surface and the delivery opening (18) for mixed water at its axial end that is axially opposite to the control member (25).Type: GrantFiled: October 19, 2000Date of Patent: July 24, 2001Assignee: Masco Corporation of IndianaInventor: Alfons Knapp
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Patent number: 6145757Abstract: A shower head with water supplied through a flexible hose. The shower head provides for two different modes of spray that can be switched by operating two push buttons. The shower head comprises a delimited supply space, two delivery members, two distinct communication passages between the supply space and the delivery members, and two separate intercept valves, each valve controlling the flow through one of the communication passages. Each valve is connected to an operating push button. A valve lever connects the two valves, so that, as one valve is depressed and therefore closed, the other valve is correspondingly opened.Type: GrantFiled: September 23, 1999Date of Patent: November 14, 2000Assignee: Masco Corporation of IndianaInventor: Alfons Knapp
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Patent number: 6135152Abstract: A pair of hard material plates form the control members for a sequential type mixing valve, the plates perform, during the control stroke, only a relative rotation around a rotation center, the fixed plate has two passage openings and the movable plate has at least one passage opening, the whole of a first portion of the fixed plate is located on one side of a first straight line passing through the rotation center is lacking in openings, both openings of the fixed plate occupy in their whole just less of a second portion of the fixed plate, lying with respect to the first straight line opposite the first portion of the fixed plate, both openings of the fixed plate are mutually separated by a rib having, at least in part, the minimum width needed for ensuring the seal, the whole of a first portion of the movable plate which is located on one side of a second straight line passing through the rotation center is lacking in openings, and the passage openings of the movable plate occupy in their whole only a partType: GrantFiled: January 26, 1999Date of Patent: October 24, 2000Inventor: Alfons Knapp
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Patent number: 5971285Abstract: A retaining device for frictionally retaining two mobile parts of a thermostatically controlled mixing valve. The first part of the mixing valve contains a cavity having a side wall, a top wall, and a bottom wall. An O-ring type packing washer is disposed in the cavity and frictionally grips a surface of the second mobile part. The axial distance between the top wall and bottom wall of the cavity is less than the cross-sectional diameter in the axial direction of the ring-shaped packing washer. The packing washer is thus compressed axially and establishes a frictional hold between the top wall and the bottom wall of the cavity and the axially extending surface of the second mobile part. The diameter of the cavity is greater than the diameter of the compressed ring-shaped packing washer thereby forming a ring-shaped space or chamber between the washer and the side wall. This ring-shaped space communicates with a water holding area of the mixing valve through a groove in the bottom wall of the cavity.Type: GrantFiled: May 11, 1998Date of Patent: October 26, 1999Assignee: Masco Corporation of IndianaInventor: Alfons Knapp
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Patent number: 5931374Abstract: Two flow control ceramic discs (22 and 24) for a thermostatic valve (10) has ports to adjust water flow from a closed to a full open position. Ceramic disc (24) has a contoured inlet (32) that has a wide section (92) and narrow section (90) that provide varying flow adjustment with respect to the other port (30). The contoured port provides for increased capacity of mixing adjustment for the thermostatic element (70) during different manual flow adjustments.Type: GrantFiled: December 22, 1997Date of Patent: August 3, 1999Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5904291Abstract: A thermostatic regulator (30) for a single handle mixer valve (12) has a sensor (32) mounted in a mixed water chamber (34) for sensing the temperature of the outlet water. The sensor is connected to a valve (20) that is mounted in the cold water supply line (18) to restrict the availability of cold water when the water in the hot water line (16) is down below a set temperature.Type: GrantFiled: November 10, 1997Date of Patent: May 18, 1999Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5901732Abstract: A pressure balance or proportioning valve which comprises a disk-shaped mobile unit (10) having a pair of cylindrical shells (12) extending from each side of the mobile unit (10) which is axially movable in a bore (2) of a housing which contains hot and cold water inlet (5) and outlet (3, 4) pipes. The housing includes hot and cold water outlet pipes (3, 4), a cold water inlet (5) or supply pipe in one end of the bore, and a hot water inlet (5) or supply pipe at the other and opposite end of the bore. The hot and cold water supply pipes terminate in end walls (7) and have cylindrical side walls (13) adjacent the end walls with openings (14) extending radially through the cylindrical side walls (13). The mobile unit (10) is disposed intermediate the end walls (7) and moves axially, in response to unequal water pressure, in the bore between the end walls (7).Type: GrantFiled: November 12, 1996Date of Patent: May 11, 1999Assignee: Masco Corporation of IndianaInventor: Alfons Knapp
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Patent number: 5816289Abstract: A noise and vibration dampening device for mixing valves for faucets and the like. The device comprises an envelope comprised of flexible material defining an air pocket. The envelope is disposed in an area where it is in contact with water but is out of the direct stream of the water flow. The water in contact with the envelope is also in contact with the stream of water flowing into the mixing valve.Type: GrantFiled: December 10, 1996Date of Patent: October 6, 1998Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5813435Abstract: A mixing valve (10) has a control stem (42) for adjusting the movable ball valve (24) for controlling the flow rate and temperature mix of the mixed water. The ball valve (24) has a pair of slots (60) and a pin (64) extending through the slots (60) of ball valve (24). The stem (42) has a brace (80) extending into the ball valve and abuts against the pin (64). The pin (64) is journaled in a cartridge (56) such that the ball is vertically affixed to the cartridge (56) and is prevented from falling out the bottom open end (92) of the cartridge.Type: GrantFiled: July 11, 1997Date of Patent: September 29, 1998Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5664603Abstract: A mixer valve (10) includes a valve housing (12) that mounts a cartridge (26). The ball valve element (24) is vertically affixed within the cartridge housing (56) by a pin (60) extending through the ball valve element and having its distal ends (62) received in a pair of circumferentially extending slots (68). A gasket (98) having generally square cross section seals the upper section (99) of the ball valve element from water leakage and provides operating resistance to the ball valve element. The optional ring member (140) is biased against the ball valve element (24) by the sealing gasket (98) to add to the operating resistance of the ball valve element (24).Type: GrantFiled: September 3, 1996Date of Patent: September 9, 1997Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5615709Abstract: A mixer valve (10) includes a valve housing (12) that mounts a cartridge (26). The cartridge (26) houses a ball valve element (24) that has its lower end exposed to cooperate with seal elements (25) about inlet ports (18) and (19). The ball valve element is vertically affixed within the cartridge housing (54) by a pin (60) extending through the ball valve element and having its distal ends (62) received in a pair of circumferentially extending slots (68).Type: GrantFiled: June 9, 1995Date of Patent: April 1, 1997Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5613521Abstract: A mixer valve includes a cartridge (26) that houses a ball valve element (24) that has its lower end exposed to cooperate with elastomeric seals (49) seated in inlet ports (45,46). The ball valve element (24) is vertically affixed within the cartridge housing (56) by a pin (60). The elastomeric seals (49) and ports (45,46) are in an installable insert member (44) which cooperates with inlet passages (18,19) in the lower base member (14). The cartridge (26) is removable from the insert member to expose the elastomeric seals (49) for replacement thereof.Type: GrantFiled: November 21, 1994Date of Patent: March 25, 1997Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5613520Abstract: A noise and vibration dampening device for mixing valves for faucets and the like. The device comprises an envelope comprised of flexible material defining an air pocket. The envelope is disposed in an area where it is in contact with water but is out of the direct stream of the water flow. The water in contact with the envelope is also in contact with the stream of water flowing into the mixing valve.Type: GrantFiled: February 15, 1996Date of Patent: March 25, 1997Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5592971Abstract: A mixing valve (10) has a control stem (22) for adjusting the movable ball valve (20) for controlling the flow rate and temperature mix of the mixed water. A spring clip (100) is mounted onto a rotatable disc member (70) retained on an upper fixed member (27). The plate member (70) has a slot (74) that receives the control stem (22) of valve element (20). The spring clip (100) has arms (102) with inwardly extending projections (114) that laterally engage the stem (22) to increase the operating force of the mixing valve when the mixing valve is at a preset flow position. The spring clip (100) rotates with the disc to cause no effect upon the temperature adjustment of the ball valve (20).Type: GrantFiled: August 4, 1995Date of Patent: January 14, 1997Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5507314Abstract: A ball type mixer valve (20) has a housing (25) and a ball valve element (11) mounted for pivotable motion about a longitudinal axis (A) of the housing (25) and a second perpendicular axis (B) that is fixed with respect to the ball valve element (11). The ball valve element has a control stem (10) extending therefrom and a pin (15) extending at a substantially perpendicular angle from the control stem. Two distal ends (16 and 17) of pin (15) form pivots which are received in slots (7) formed in the valve housing to position the ball vertically in the housing and allow the motion of the ball about the two defined axes.Type: GrantFiled: December 8, 1993Date of Patent: April 16, 1996Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5494076Abstract: A noise and vibration dampening device for mixing valves for faucets and the like. The device comprises an envelope comprised of flexible material defining an air pocket. The envelope is disposed in an area where it is in contact with water but is out of the direct stream of the water flow. The water in contact with the envelope is also in contact with the stream of water flowing into the mixing valve.Type: GrantFiled: June 15, 1994Date of Patent: February 27, 1996Assignee: Masco CorporationInventor: Alfons Knapp
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Patent number: 5477885Abstract: A mixing valve (10) has a limiting mechanism (26) for controlling the maximum flow rate and maximum temperature mix of the mixed water. The limiting mechanism (26) includes a rotatable plate member (70) retains on a cap assembly (56) by a positioning ring member (82). The plate member (70) has a slot (74) that receives a control stem (22) of valve element (20). A handle (90) has a leg section (96) that fits onto control stem (22) and has a cross-sectional shape that prevents the handle from rotating about the control stem axis. The positioning ring has a projection (88) that limits the rotation of the plate member (70) to define a maximum temperature mix of the discharged water through outlet port (30) of the mixing valve (10).Type: GrantFiled: May 26, 1994Date of Patent: December 26, 1995Assignee: Masco CorporationInventor: Alfons Knapp